Car-roof.



W. P. MURPHY.

CAR Roof.

APPLiCATION FILED APR.|0|1915.

.f l l?. Paentved Oat. 12, i915.

z sHEUs-sneer 1.

W. P. MURPHY.'

CAR ROOF.

APPucATloN man APR. 1o. 1915.

Patented Oct. 12, 1915.

2 SHEETS-SHEET 2 STTES orion.

cercgnoor.

Patented Oct. 12, 1915.

Original application filed December 22, 1911,-Seria1 No. 667,297.Divided and this application filed April 10,1915. seri-a1 No. 20,393.

T all whom t may concern.'

Be it known that I, W'ALTER P. MURPHY, a citizen of the United States,and a resident of the city of Chicago, in the county of Cook and Stateof Illinois, have invented a new and useful Improvement in Car- Roofs,of which the following is a specification. f

This invention relates tocar roofs composed of individual roof sheetswhich are spaced side by side and are connected by means of seam covers,and isl a division of my patent application for improvements'inl metalcar roofs, Ser. No. 667,297, filed Dec.

The object ofl this invention is an improved seam or joint forconnecting movably mounted roof sheets; and a further ob the same, onthe line 2-2 inFig. 1; Fig. 3

is a side elevation of a portion of the roof at the eaves, showing theeaves end of a seam cover; Fig. 4 is a transversemsection through theeaves portion of the roof on the line Qf-'JZ in Fig. 1; Fig. 5 is across-section through a joint embodyingthe invention on the line 5-5 inFig. 1; and Fig. 6 is a perspective view of a roof'sheet.

The invention is applicable to outside metal roofs for cars havingeither metal or wood frame members. The roof substructure maybe of anysuitable construction. Preferably it consists of carlines 11 supportedat their ends by the side plates 12 of the car, and purlins 13 and ridgepiece 10 arranged lengthwise of the car and supported by the carlines.The roof sheets 1 4. are made from corrugated metal sheets, and areformed with upstanding side flanges 15 which i are provided withinturned lips 16 at the top.

The corrugations are flattened yout at the eaves, and the eaves ends ofthe roof sheets are turned down to form eaves flanges- 17.

positions parallel to the` carlines.

rIfhe roof sheets 'are dished between their side fianges, that is, themarginal portions 18 of the vrpof sheets adjacent to the flanges 15 areinclined upwardly, and are raised above the substructure where they`meet the side flanges. `Inverted channel-shaped seam covers 19 stiaddlethe side'flanges of adjacent roof sheets, the inside width of the seamcovers being` suiiicient to leave a space between each side wall 20thereof and the edge of the adjacent inturned lip 16. The side walls ofthe seam covers slope outwardly, and have lateral outturned base flanges21 along their lower edges. The lateral base fianges 21 of the seamcovers arevdisposed at a slight slant, conforming to the slant of j themarginal portions'll of the roof sheets, and are arranged to rest "orbear flatwise on the roof sheets between the 'corrugations and sideflanges of the sheets.

In the preferred form ofthe invention, the lateral base fiaiiges 21 ofthe seam covers are pressed down on the slanting marginal portie us 18ofthe roof sheets to form watertight resilient flexible joints. Spacingthe slanting marginal. or dished portions of the roof sheets above thesubstructure eliminates any trouble due to the seam covers pinching theroof sheets down on the substructure and preventing the slight shiftingofthe roof sheets to accommodate themselves to distortion of thesubstructure. Y Moreover, the

raised marginal portions of the roof sheets upon which the lateral basefianges of the seam covers rest are above the general water `level ofthe roof sheets,.and hence there is no liability of water seeping underthe seam covers b v capillarity and rusting'out the roof sheets neartheir side flanges. There is suiiicient spring in the seam cover flangesand in the upwardly inclined marginal portions of thel roof sheets tokeep them in close contact at all'times, and to maintain the tightnessof the joint even though the roof sheets may become displaced from theirnormal positions. Moreover, the pressure of the seam covers on theinclined marginal portions of the sheets has a tendency to maintain vthesheets in their normal This shape. and arrangement of seam covers androof sheets not only providesr a watertight seam or joint betweenadjacent roof sheets well adapted to preventfv the entering of waterinto the car, and one' in which water of the roof sheets, and are spacedaway from the fascia's sufciently to, allow slight freedom of movementof the corners of the Vroof Sheets c'rosswise of the roof. rlhedownvturnedenels4 of the seam covers are loosely se- Acured to the-sideof the car by bolts 23 y which also attach the fascias 'to the sidei plates. The bolts 23 pass through holes in the ends of the seam coverslarger than the boltsl and bushings 24 are placed on the ends ofthebolts between the fastening nuts'25 and fascia board 26 for the purposeof' spacing the nuts from the fascia and allowing freedom of movementofthe seam coversv crosswise of the car.

The ridge-ends of the roof sheets rest upon the ridge piece 10 and haveupstanding flanges. 27 which terminate in inturned lips 28 along theirAtop edges. The ridge covers 29 straddle and cover the ridge flanges ofeach pair of oppositely arranged sheets.

Corner caps 30 arearranged over the ridge .ends of the seam covers 19and ends of the ridge covers 29, and the running board sadvdles 31j arelarranged on top of the corner caps and bolted to the ridge piecethereby securing the corner caps and lseam covers in position at theridge. l'

The `invention is not restricted to the preoise forms and arrangementsofparts shown and described.

What I claim is:

1. An allv steel car roof comprising side plates, carlines havingvertical stiifening members, purlins attached to the bottoms`of saidcarlines with their tops below the tops 4of the carlines, a ridge piecesecured to the carlines, and dished flangedroof sheets arranged on saidpurlins between the carlines with their margins spaced from the latter,

- said roof sheets being vsupported intermediate their side margins onsaid side plates,

"purlinsand ridge piece, and seam covers straddling said carlines androof sheet ianges and having downturned side walls resting flatwise onthe .dished portions of said roof sheets.

2. A car roof comprising side plates, carlines, purlins and a ridgepiece, and flanged roof sheets dished upwardly at their side marginsarranged between the carlines with their flanges spaced from'the latter,said roof sheets supported on said side plates, purlins and ridge pieceand non-rigidly attached to ythe car by resilientmeans cooperating withtheir dished margins within their flanges.

3. An all steel car roof comprising carlines, purlins, and ridge piece,dished roof sheets having integral side and ridge flanges non-rigidlysupported on said purlins and ridge piece between the carlines, andretaining strips having flanged portions bearing' upon the dishedportions of said roof sheets substantially as described. f

4. A car roofcoinprising a substructure, metal roof sheets thereonextending from the eaves toward the ridge, metal seam covers overlyingthe adjacent side margins of said sheets and means for securing lthesameto the roof substructure, said sheetsbeing provided with dished sidemarginal portions and upstanding` flanges along their side general planeof the roof sheets and overlapping the carlines and spaced therefrom,and seamcovers spanningsaid edge flanges 'and having edge portionscooperating with said raised margins for holding said roof sheets 1nposition.

6. A car roof .having 'a substructure, roof sheets suppprted on saisubstructure and having tipi-tending edge f anges, the margins of aroo-J;A sheet adjacent t'o its upstanding flanges haring an upward slopeaway from the body Vportion of said roof sheet, seam covers forthejoints' between adjacentroof sheets, the edges of said seam covershaving a downward and outward slope conforming to the slope of themargins of said `roof sheets, and means kfor clamping said seam coversdown on said substructure f whereby said roof sheets are held inposition thereon.

7. In a car roof, roof sheets movably arranged with their side marginscontiguous and extending transversely with lrespect to the car, saidsidev marginal portions of the roof sheets being formed with upstandingflanges, the edge portions of the roof sheets sloping up to thebases ofthese flanges, said edge portions being space'd above the roofsubstructure and seam covers having slanting sides and lateral baseflanges at an angle thereto conforming to the slope of the edge portionsof the roof sheets overlapping the margins of adjacent sheets andsecured to the roof substructure.

8. In a car roof, longitudinally corrugated roof sheets arranged side byside with the corrugations extending transversely with respect to thecar, said roof sheets having upwardly sloping side edges terminating inupmattei? standing flanges, seam covers spanning said upstandingflanges, said seam covers having downwardly extending sides terminatingin lateral flanges projecting at an angle thereto, said lateral flangesresting flatwise on the sloping side edges of the roof sheets hetweenthe corrugations and the upstanding side flanges thereof.

, 9. In a car roof, longitudinally corrugated roof sheets movablyarranged side by side and spaced apart with the corrugations eX- tendingtransversely with respect to the car, said roof sheets having upwardlysloping side edges terminating in upstanding flanges, seam'coversspanning the spaces between adjacent roof sheets and covering saidupstanding flanges, said seam covers having downwardly extending sides`spaced from said upstanding flanges and terminating i'n lateral flangesprojecting at an angle thereto, said lateral flanges resting flatwise onthe sloping side edges of the roof sheets between the corrugations andthe upstanding side flanges thereof.

10. A seam construction for a car roof having movableroofsheets, saidseam construction comprisingv a seam cover of inverted channel shapeprovided with outwardly projecting flangesalong the lower edg'es- '19its side walls, in combination with the side margins of the roof sheets,said side margins being raised to a height above the supportingsubstructure and provided with edge flanges projecting up within saidseamA covers and spaced from the side .walls thereof, the adjacentraised margins contacting flatwise with the under surface of the out-Copies of this patent may be obtained for `wardly projecting flanges ofthe seam covers, whereby a tight sliding joint ismaintained between saidseam covers and roof sheets above the general level of the main drainageportion of said sheets.

.11. A.V car roof comprising metal roof sheets arranged side by sidewith a clear space between them, said roof sheets having their sidemargins raised above the plane of support of the roof sheets and clearof the supporting substructure, seam covers bridging the spaces betweensaid roof sheets and having lateral flanges resting llatwise on saidraised margins, said lateral flanges terminating short of the junctionsof the raised vsaid upstanding flanges of the roof sheets and themselveshaving marginal flanges that bear flatwise against the raised marginalportions of the roof sheets.

v Signed at St. Louis, Missouri, this 5thl day of April, 1915.

I WALTER P. MURPHY.

ve cents each, by addressing the Commissioner of Patents, Washington, D.C.

